71048849 has 2 divisors, whose sum is σ = 71048850. Its totient is φ = 71048848.

The previous prime is 71048827. The next prime is 71048867. The reversal of 71048849 is 94884017.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50410000 + 20638849 = 7100^2 + 4543^2 .

It is an emirp because it is prime and its reverse (94884017) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71048849 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (71048149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35524424 + 35524425.

It is an arithmetic number, because the mean of its divisors is an integer number (35524425).

Almost surely, 2^71048849 is an apocalyptic number.

It is an amenable number.

71048849 is a deficient number, since it is larger than the sum of its proper divisors (1).

71048849 is an equidigital number, since it uses as much as digits as its factorization.

71048849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 71048849 is about 8429.0479296300. The cubic root of 71048849 is about 414.1767178694.

The spelling of 71048849 in words is "seventy-one million, forty-eight thousand, eight hundred forty-nine".